Spray a 9 by 13-inch baking dish with cooking spray and set aside.
In a small saucepan over medium heat, combine honey, peanut butter, oil, brown sugar, and cinnamon. Stir and cook until mixture just begins to bubble, about 3 to 5 minutes. Remove from heat and stir in vanilla extract.
In a large bowl, combine oats, cereal, ground flaxseed, dried fruit, and salt.
Pour peanut butter mixture over oatmeal mixture and stir gently with a spatula until well combined. Transfer to baking dish and press firmly into dish. (I find that using a potato masher is the most effective way to do this.)
Allow to cool completely (they cool faster in the refrigerator). Cut into squares or bars.